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2 years ago

15

jennifer is saving up to buy dress. she has saved up to $39 so far. that's three fifths of the money she needs to buy the dress.

what is the total cost of the dress

1 answer:

frez [133]2 years ago

7 0

If she haved save 3/5 which = $39. First divide 39/3= 13 . Thats tells you how much each of the 5 parts are worth than just simply multiply 13*5=65

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goblinko [34]

Answer:

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Step-by-step explanation:

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2 years ago

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Reduce the fraction to lowest terms. y+5/2y+10<br><br>A:1/4<br>B:1/2<br>C:2/5

Oduvanchick [21]

The given fraction is:

$\frac{y+5}{2y+10}$

We cannot take anything common from the numerator but from the denominator we can take out 2 as common because 2 is a factor of both the terms i.e. 2y and 10.

2y + 10 can be written as 2y +2(5) which can further be written as 2(y+5)

So, our fraction now becomes:

$\frac{y+5}{2(y+5)}$

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$\frac{1}{2}$

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2 years ago

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const2013 [10]

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3 years ago

I will appreciate if you answer this problem,thanks

aliya0001 [1]

Answer:

None

Step-by-step explanation:

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I've attached a screenshot of what i graphed out.

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2 years ago

g What is the probability of being dealt exactly three of a kind (like three kings or three 7’s, etc.) in a five card hand from

Elena L [17]

Answer: 0.02257

Step-by-step explanation:

Given : Total cards in a deck = 52

Number of ways to select any 5 cards : $^{52}C_5$

Since , there are total 13 kinds of card (includes Numbers from 2 to 9 and Ace , king, queen and jack).

Of each kind , there are 4 cards.

Number of ways to select three cards in a five card hand of a single kind : $^{4}C_3\times^{48}C_2$

Number of ways to select three cards in a five card hand of a exactly three of a kind : $13\times^{4}C_3\times^{48}C_2$

Now , the required probability = $\dfrac{13\times^{4}C_3\times^{48}C_2}{^{52}C_5}$

$=\dfrac{13\times4\times\dfrac{48!}{2!46!}}{\dfrac{52!}{5!47!}}\\\\\\=\dfrac{58656}{2598960}$

$=0.022569027611\approx0.02257$

∴ The probability of being dealt exactly three of a kind (like three kings or three 7’s, etc.) in a five card hand from a deck of 52 cards= 0.02257

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3 years ago